What a perfect time for this game to show up! Just when we were doing "lock-time" all over again.

What this game illustrates is the delay between visual input and a resulting finger output. It's about 0.25 seconds, more or less and most of the time. This is the "rubber-band" of nervous system delay, which surely buries any lock-time differences, which are no more than 1/30th of this figure.